Textile gromet-web.



No. 880,084. PATENTED SEPT. 4, 1906.

A. 'M. ZIEGLER.

TEXTILE GROMET WEB.

APPLICATION FILED 00124, 1904.

BPEOIMEHS.

(0 V0 MA 3 Z rnE NORRIS PZTERS cm, WASHINGTON, D. c.

UNITED STATES PATENT OFFICE.

ALFRED M. ZIEGLER. OF BOSTON, MASSACHUSETTS, ASSIGNOR TO A. ZIEGLER & SONS COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

TEXTILE GROIVIET-WEB.

To all whom it may concern..-

Be it known that I, ALFRED M. ZIEGLER, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented an Improve: ment :in Textile Grornet-lVebs, of which the following description, in connection with the accompanying drawings, is a specification,

like characters on the drawings representing like parts.

In suspenders it is customary to form a buttonhole in the web as the latter is-woven, the fabric at each side of the buttonhole-slit being in one ply, and in wearing-apparel it is customary to overstitch the edges of a cut buttonhole to enable the edges of the same to withstand wear. There are, however, some webs that are so light and delicate in structure, especially those made from lisle thread, that it is not practicable to weave therein a buttonhole and constitute a strong serviceable edge.

The object of this invention is the production of a woven fabric, herein designated as a gromet-web, which is woven at intervals of its length to present two superimposed fabrics and at other portions of its length to present a longitudinal opening at the center of the web, the fabric from said opening toward the opposite edges of the web presenting two plies. This fabric may be separated at the portions of its length where there are two plies extending from edge to edge of the fabric, and thereafter the portions of the fabric containing the longitudinal woven central opening may be inserted in a slit or hole cut in any fabric to form a durable finish for the edge of said slit or hole.

Figure 1 shows a portion of a pair of suspenders with a portion of my novel gro'metweb inserted in slits thereof to constitute buttonholes. Fig. 2 shows a piece of the gromet-web before the same is cut into serviceable lengths. Fig. 3 is a cross-section in the line ac, Fig. 1. Figs. 4 and 5 are enlarged diagrams showing the fabric, Fig. 2, cut, respectively, on the lines as and and Figs. 6 and 7 are diagrams showing the position of the warp-threads during the formation of the part of the woven fabric having the hole. Fig. 8 is a diagram showing the position of the warp and weft threads during the formation of the two plies.

Specification of Letters Patent.

Application filed October 24, 1904. Serial No. 229.743.

(Specimens) The web A, forming part of the shoulder embracing a portion of a pair of suspenders, may be what is known as a lisle-thread web, or it may be a web of any usual kind having a slit made therein for the formation of a buttonhole, said figure showing, however, woven gromets applied to the slits of the web to constitute buttonholes.

In the production of the so-called grometweb I have provided a loom with two sets of warps a and b, and said loom has a sufficient number of harness-fra1nes to separate the warps a and the warps I), each to constitute sheds, as represented, for the reception of wefts c d, each carried by a separate shuttle, which is thrown through the shed in any usual way. hen the two sets of warps are separated, as in Fig. 8, and sheds are formed in each set for the reception of shuttles carrying the weft-threads c (1, two plies of cloth of (see Fig. 5) are formed, one superimposed over the other. (See also Fig. 2.) hen, however, sheds are to be formed in the warps a and b for the production of a longitudinal slit g, then one half of both sets of warps a and b will be lifted above the other half, as shown in either Figs. 6 or 7, and the shuttle carrying, say, the filling 0 (see Fig. 6) will be thrown from the outer edge of the warps through a shed formed between the warp-threads a, and on its return flight the shuttle will be thrown through a shed formed in the warp-threads 1). Prior to its next flight the sheds will be changed in the portion of the warp-threads a and I) just referred to, and the shuttle will at its next inward flight pass through a shed in the warpthreads I) and will then at its next outward movement pass through the next shed in the warps a. The weft-thread so inserted is represented at the right in Fig. 6, and sup posing the weft to be properly compacted the two warps 2 3 will be drawn practically together, constituting an edge, as shown in Fig. 3, whereas the edge of the fabric containing the warps 4 and 5 are not connected, and the warps a and l) united by the weft c, said weft being left in sheds of warp (t at one stroke and sheds of warp l) at the next stroke, will be woven V shape, or the outer edges Will be in two ply and the inner edges in single ply. The other half of the warp-threads, as represented at the left in Fig. 7, may then be Patented Sept. 4, 1906.

raised into the position therein shown and the warps at the left, Fig. 6, united by the weft c be then lowered, and the warp at the left in its new position may be separated into sheds, as described of the warps at the right,

and the weft I), carried by the other shuttle,

will be used, entering a shed formed in one part of the warp-threads and emerging from a shed formed in the other part of the warpthreads, as described with relation to the warp-threads lifted in Fig. 6. The diflerent Wefts will be inserted a few picks at a time in this way for a sufficient distance through- V in the dotted line 213 Fig. 2,

out the length of the warp-threads to weave a slit or hole 9 of the proper length, and this done all of the warps will be put again into the position Fig. 8, and the sheds will be again made for the reception of wefts to lbuttonhole, and said fabric inserted in the cut hole, as represented in Figs. 1 and 2, will then be stitched along its parallel sides, as at 8, Fig. 3, and the two-ply ends of the grometweb beyond the ends of the woven slit 9 will be inturned, and inasmuch as these edges formed by cutting the fabric transversely are not selvage edges such edges will be inturned and stitched to the body of the fabric with which the woven gromet-web is being used.

Having described my invention, what I clam as new, and desire to secure by Letters Patent, is 3 g 1. The herein-described strip of textile material constituting a gromet-web formed of warp and weft threads in two superposed plies, each of said plies having selvage edges and formed with a slit or opening at intervals, the warp and weft threads of the two plies being interwoven at said slits or openings.

2. A gromet-web formed of warp and weft threads in two superposed plies, said warp and weft threads being woven in their respeetive plies to produce selvage edges, and the said warp and weft threads of the two plies being interwoven at intervals to form slits or openings with selvage edges.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALFRED M. ZIEGLER.

Witnesses:

GEO. N. GREGORY, MARGARET A. DUNN. 

